Ultranarrow PbS nanorod-nematic liquid crystal blend for enhanced electro-optic properties

Sudarshan Kundu, Jonathan P. Hill, Gary J. Richards, Katsuhiko Ariga, Ali Hossain Khan, Umamahesh Thupakula, Somobrata Acharya

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Dispersion of ultranarrow PbS nanorods of 1.8 nm diameter, encapsulated by a fluidlike soft trioctylamine layer, in the nematic liquid crystal (LC ZLI-4792) results in a novel soft matter type blend with enhanced electro-optic properties. Despite having a cubic rock-salt structure, the ultranarrow rods possess a finite inherent dipole moment and show excellent miscibility in the LC host. The local ordering significantly affects the global ordering of the blend allowing a more rapid response of the electro-optic properties. These unique blends are obtainable only by doping with one-dimensional nanorods of ultrasmall dimensions and illustrates how a nonmesogenic element can be introduced within a liquid crystal for improvement of the switching properties of the blend. The unique blend could be a model for fundamental conceptual advances in general understanding of interaction behavior, leading consequently to a significant technological advancement for superior device fabrications.

Original languageEnglish
Pages (from-to)2759-2766
Number of pages8
JournalACS Applied Materials and Interfaces
Volume2
Issue number10
DOIs
Publication statusPublished - 2010 Oct 27
Externally publishedYes

Keywords

  • blend
  • dipole moment
  • electro-optic properties
  • nematic liquid crystal
  • ultranarrow PbS rods

ASJC Scopus subject areas

  • Materials Science(all)

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